The road to March Madness is underway.

On Saturday, CBS Sports hosted a 30-minute preview of the top 16 seeds in college basketball based on the first three months of the season. Basically, it’s college basketball’s version of the College Football Playoff rankings.

Seeds No. 1 through No. 4 were announced for each of the four regions and four B1G teams made the cut. Michigan, Michigan State, Purdue and Wisconsin were all mentioned in the latest bracket projections.

NCAA selection committee chair Bernard Muir was in studio to break down the top 16 seeds, providing a little explanation behind each selection. Here’s how the brackets look with a month of basketball still remaining.

East Region

  1. Duke (top overall seed)
  2. Michigan
  3. Marquette
  4. Iowa State

South Region

  1. Tennessee
  2. North Carolina
  3. Purdue
  4. Nevada

West Region

  1. Gonzaga
  2. Michigan State
  3. Kansas
  4. Louisville

Midwest Region

  1. Virginia
  2. Kentucky
  3. Houston
  4. Wisconsin